macOS compatibility: What macOS versions can my Mac run? | Macworld
How to Use Your iPad as a Second Monitor - AppleToolBox
macOS Catalina - Wikipedia
macOS Catalina on my 2011 17” Macbook Pro. 👍 : r/CatalinaPatcher
Dosdude1 is one talented as hell guy to have pulled this off. A huge thanks to him and the others who helped make the patcher who have helped make loads of old
Apple Macbook Pro 13 Laptop | i5 16GB RAM + 1TB HD | MacOS Catalina | WARRANTY | eBay
How to install Mac Os Catalina on MacBook Air mid 2011 - YouTube